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September 2013 Rev 2 1/18
AN2791
Application note
L9352B coil driver for ABS/ESP applications:
current regulated channel analysis
Introduction
This document describes a detailed analysis on the current regulated channels of the ST
coil driver L9352B. This intelligent quad-low side switch is typically used to drive inductive
loads such as on-off valves of the hydraulic modulator of ABS
(a)
/ESP
(b)
control unit.
a. Antilock Brake System (ABS).
b. Electronic Stability Program (ESP).
www.st.com
